| Index | Southmayd | Texas | National |
| Average Test Scores | 43% | 47% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Southmayd | Texas | National |
| Completed 8th grade | 67.4% | 79.3% | 84.3% |
| Completed high school | 66.8% | 77.8% | 83.0% |
| Completed some college | 45.5% | 57.3% | 59.4% |
| Completed associate degree | 17.7% | 34.9% | 38.5% |
| Completed bachelors | 6.3% | 28.1% | 30.3% |
| Completed masters | 1.4% | 9.6% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Southmayd. Using the proficiency score averages, the average test scores for Southmayd, TX schools is 43%. The average student to teacher ratio is n/a. In Southmayd, TX, an average of 67.4% of students have completed 8th grade and an average of 66.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Callisburg, TX | 240 | 64% | 32.3% |
| Van Alstyne, TX | 4,153 | 60% | 24.2% |
| Gunter, TX | 1,909 | 56% | 17.4% |
| Tioga, TX | 958 | 56% | 15.6% |
| Whitesboro, TX | 4,043 | 55% | 14.9% |
| Southmayd, TX | 1,510 | 43% | 10.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Bloomington, TX | 1,510 | 23% | 53.1% |
| Vernon, NY | 1,510 | 42% | 12.5% |
| Clara City, MN | 1,510 | 50% | 3.1% |
| Del Norte, CO | 1,509 | 21% | 56.8% |
| Albion, NE | 1,511 | 56% | 16.7% |
| Southmayd, TX | 1,510 | 43% | 10.4% |
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